Ultrafine-Grained Tungsten Heavy Alloy Prepared by High-Pressure Spark Plasma Sintering

被引:7
作者
Zhang, Shuaihao [1 ]
Zhu, Qiqi [1 ]
Li, Qiunan [2 ]
Ji, Wei [1 ]
Wang, Weimin [1 ]
Fu, Zhengyi [1 ]
机构
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Hanjiang Hongyuan Xiangyang Silicon Carbide Speci, Xiangyang 441000, Peoples R China
基金
中国国家自然科学基金;
关键词
tungsten heavy alloy; ultra-fine grain; high pressure; spark plasma sintering; hardness; NI-FE ALLOY; MECHANICAL-PROPERTIES; W-CU; MICROSTRUCTURE; PHASE; DENSIFICATION; PERFORMANCE; BEHAVIOR; GROWTH; MO;
D O I
10.3390/ma15176168
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Tungsten heavy alloy (WHA) is an ideal material employed for kinetic energy penetrators due to its high density and excellent mechanical properties. However, it is difficult to obtain ultrafine-grained tungsten alloy with excellent properties by traditional powder metallurgy method because of severe grain growth at a high sintering temperature with a long soaking time. In this study, the sintering behavior of tungsten alloys was studied at 800 to 1300 degrees C, and highly dense 93W-5.6Ni-1.4Fe (wt.%) WHA was successfully fabricated at a low temperature of 950 degrees C with a high pressure of 150 MPa by spark plasma sintering. The as-sintered tungsten alloy possesses a high relative density (98.6%), ultrafine grain size (271 nm) and high dislocation density (2.6 x 10(16) m(-2)), which results in excellent properties such as a high hardness (1079 HV1). The high sintering pressure is considered to support an additional driving force for the sintering and lead to a low-temperature densification, which effectively limits grain growth.
引用
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页数:11
相关论文
共 44 条
[1]   Study of NiFeCoCr medium entropy alloy as a binder phase on W-Mo heavy tungsten alloy by secondary ball milling [J].
Chen, Chun-Liang ;
Sutrisna .
INTERMETALLICS, 2021, 138
[2]   Microstructure and mechanical properties of additive manufactured W-Ni-Fe-Co composite produced by selective laser melting [J].
Chen, Hui ;
Zi, Xuhui ;
Han, Yong ;
Dong, Jing ;
Liu, Shichao ;
Chen, Chao .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2020, 86
[3]   Use of AFM topography images to determine microindentation hardness of cast tungsten carbide powders [J].
Ciurans-Oset, Marina ;
Mouzon, Johanne ;
Akhtar, Farid .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2022, 107
[4]   Effect of high energy ball milling on structure and properties of 95W-3.5Ni-1.5Fe heavy alloys [J].
Debata, M. ;
Acharya, T. S. ;
Sengupta, P. ;
Acharya, P. P. ;
Bajpai, S. ;
Jayasankar, K. .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2017, 69 :170-179
[5]   Phase, microstructure and properties evolution of fine-grained W-Mo-Ni-Fe alloy during spark plasma sintering [J].
Ding, L. ;
Xiang, D. P. ;
Li, Y. Y. ;
Zhao, Y. W. ;
Li, J. B. .
MATERIALS & DESIGN, 2012, 37 :8-12
[6]   Preparation of ultra-fine grain W-Y2O3 alloy by an improved wet chemical method and two-step spark plasma sintering [J].
Dong, Zhi ;
Liu, Nan ;
Ma, Zongqing ;
Liu, Chenxi ;
Guo, Qianying ;
Liu, Yongchang .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 695 :2969-2973
[7]   Effects of powder mixing technique and tungsten powder size on the properties of tungsten heavy alloys [J].
Eroglu, S ;
Baykara, T .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2000, 103 (02) :288-292
[8]   Oscillating pressure sintering of W-Ni-Fe refractory alloy [J].
Gao, Ka ;
Xu, Yueyang ;
Tang, Gaopeng ;
Fan, Lei ;
Zhang, Rui ;
An, Linan .
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 805 (789-793) :789-793
[9]   Microstructure and highly enhanced mechanical properties of fine-grained tungsten heavy alloy after one-pass rapid hot extrusion [J].
Gong, X. ;
Fan, J. L. ;
Ding, F. ;
Song, M. ;
Huang, B. Y. ;
Tian, J. M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (10-11) :3646-3652
[10]   Crystallization and thermal stability of mechanically alloyed W-Ni-Fe noncrystalline materials [J].
He, Z ;
Courtney, TH .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 315 (1-2) :166-173